Comment 28 for bug 516520

@Tom: Lucid is now unstable, I think these things are quite normal when you do beta test... at least I think you should be aware that is more risky to use (and headache-prone), so you can always use previous stable version instead of use other OSes ;).

Anyway, got the same behaviour after KERNEL update:
cristian@cristian-asus:~$ uname -a
Linux cristian-asus 2.6.32-18-generic #27-Ubuntu SMP Fri Mar 26 21:13:44 UTC 2010 x86_64 GNU/Linux

now I am in KDE with no possibiliuty to choose GNOME in the login screen. Please note that during boot I got messages saying that the nVidia driver could not be loaded, this happened the previous time, also (i.e. I got the problem the first time after kernel upgrade and after reboot it complained about nVidia drivers).

GDM is still at the same version as before.
cristian@cristian-asus:~$ dpkg -l gdm
[...]
ii gdm 2.29.92-0ubuntu9

Another question: I am "forcing" kernel upgrades (i.e. when I apt-get update/upgrade I saw [both times] "the following packages would not be updated" and linux-headers ... where among them.
To install them I had to sudo apt-get install linux-headers ...
Am I doing right, I mean is "deprecated" to do such thing? (and if it is, how much it is?)